[   14.568083] mpls_gso: MPLS GSO support
[  641.130198] ip (19009) used greatest stack depth: 12040 bytes left
[  843.650883] blackhole_netdev_xmit(): Dropping skb.
[  843.650968] blackhole_netdev_xmit(): Dropping skb.
[  843.651026] blackhole_netdev_xmit(): Dropping skb.
[  843.651081] blackhole_netdev_xmit(): Dropping skb.